气候变化领域集成服务门户(CCPortal): Estimation of aerosol liquid water from optical scattering instruments using ambient and dried sample streams

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DOI	10.1016/j.atmosenv.2020.117787
	Estimation of aerosol liquid water from optical scattering instruments using ambient and dried sample streams
	Zhang J.; Lance S.; Wang X.; Wang J.; Schwab J.J.
发表日期	2020
ISSN	1352-2310
卷号	239
英文摘要	Relative humidity (RH) is generally considered to be an interference (“bias”) factor for optical scattering instruments used for measuring aerosol mass concentrations. In this study, the “bias” of one kind of nephelometric monitors (Thermo PDR-1500) caused by high RH is shown to be quantitatively related to the aerosol liquid water (ALW). The method utilizes ambient and dried air samples measured by identical optical scattering instruments and a companion continuous mass concentration measurement, also sampling the dried air stream. This novel and simple method for estimating observed ALW (1) avoids the use of the complicated and expensive instruments for ALW measurement or estimation; (2) can be replicated elsewhere, (3) will improve the performance of models that predict ALW, and (4) indicates the correction of single channel nephelometers using RH alone and empirical equations is subject to error due to variation in the aerosol composition. © 2020 Elsevier Ltd
关键词	Aerosol liquid water Correction Nephelometric monitors Relative humidity
语种	英语
scopus关键词	Light scattering; Aerosol composition; Aerosol mass concentration; Empirical equations; Liquid water; Mass concentration; Optical scattering; SIMPLE method; Single channels; Aerosols; water; aerosol; concentration (composition); correction; empirical analysis; estimation method; numerical model; performance assessment; quantitative analysis; sampling; aerosol; air sampling; ambient air; analytic method; Article; concentration (parameter); humidity; measurement error; priority journal; quantitative analysis
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248997
作者单位	Atmospheric Sciences Research Center, University at Albany, State University of New YorkNY, United States; Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, United States; School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Zhang J.,Lance S.,Wang X.,et al. Estimation of aerosol liquid water from optical scattering instruments using ambient and dried sample streams[J],2020,239.
APA	Zhang J.,Lance S.,Wang X.,Wang J.,&Schwab J.J..(2020).Estimation of aerosol liquid water from optical scattering instruments using ambient and dried sample streams.ATMOSPHERIC ENVIRONMENT,239.
MLA	Zhang J.,et al."Estimation of aerosol liquid water from optical scattering instruments using ambient and dried sample streams".ATMOSPHERIC ENVIRONMENT 239(2020).